crust:adopts thermoplastic ABS resin color:spray-paint of silver gray liminotrons:4LED illumination brightness of each:100000-12000mcd batteries:4chargeable storage.1.2V.capacity:600mA 6 hours'cjarging under the sun for normal usage of 3 hours Fully charging of the storage berreries for normal usage of 7-9 hours also it can charge the chargeable storage battery of AA NO.15 Size: 10.5x9.5x3.8cm